Characterization of pacific silver fir impregnated with extractives from western redcedar

Abstract: Alternative and higher value uses are needed for residual materials generated from wood products processing. Western redcedar sawdust contains an array of unique chemicals and has the potential to be used to alter the appearance, stability and durability of non-durable timbers. Here it was...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Stirling,Rod, Kus,Stacey
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2019
Materias:	Dimensional stability durability extractives impregnation western redcedar.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000300285
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-221X2019000300285
record_format	dspace
spelling	oai:scielo:S0718-221X20190003002852019-07-23Characterization of pacific silver fir impregnated with extractives from western redcedarStirling,RodKus,Stacey Dimensional stability durability extractives impregnation western redcedar. Abstract: Alternative and higher value uses are needed for residual materials generated from wood products processing. Western redcedar sawdust contains an array of unique chemicals and has the potential to be used to alter the appearance, stability and durability of non-durable timbers. Here it was hypothesized that impregnation of Western redcedar heartwood extractives into Pacific silver fir would decrease shrinkage, hygroscopicity, and susceptibility to decay. Western redcedar hot water extracts were obtained from sawdust and used to pressure-treat Pacific silver fir blocks. Extractive impregnation enhanced the wood’s appearance and gave it a more cedar-like brown colour. Impregnated samples had reduced shrinkage, but were not as dimensionally stable as Western redcedar heartwood. Pacific silver fir blocks impregnated with water-soluble extractives were also highly susceptible to leaching, and leached samples had similar shrinkage values to untreated controls. In contrast, leaching had little effect on the hygroscopicity of the Western redcedar heartwood. Extractive-impregnated Pacific silver fir blocks had increased resistance to decay by two brown-rot fungi, and showed resistance similar to that of Western redcedar heartwood. However, leached blocks did not have the same decay resistance.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.21 n.3 20192019-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000300285en10.4067/S0718-221X2019005000301
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Dimensional stability durability extractives impregnation western redcedar.
spellingShingle	Dimensional stability durability extractives impregnation western redcedar. Stirling,Rod Kus,Stacey Characterization of pacific silver fir impregnated with extractives from western redcedar
description	Abstract: Alternative and higher value uses are needed for residual materials generated from wood products processing. Western redcedar sawdust contains an array of unique chemicals and has the potential to be used to alter the appearance, stability and durability of non-durable timbers. Here it was hypothesized that impregnation of Western redcedar heartwood extractives into Pacific silver fir would decrease shrinkage, hygroscopicity, and susceptibility to decay. Western redcedar hot water extracts were obtained from sawdust and used to pressure-treat Pacific silver fir blocks. Extractive impregnation enhanced the wood’s appearance and gave it a more cedar-like brown colour. Impregnated samples had reduced shrinkage, but were not as dimensionally stable as Western redcedar heartwood. Pacific silver fir blocks impregnated with water-soluble extractives were also highly susceptible to leaching, and leached samples had similar shrinkage values to untreated controls. In contrast, leaching had little effect on the hygroscopicity of the Western redcedar heartwood. Extractive-impregnated Pacific silver fir blocks had increased resistance to decay by two brown-rot fungi, and showed resistance similar to that of Western redcedar heartwood. However, leached blocks did not have the same decay resistance.
author	Stirling,Rod Kus,Stacey
author_facet	Stirling,Rod Kus,Stacey
author_sort	Stirling,Rod
title	Characterization of pacific silver fir impregnated with extractives from western redcedar
title_short	Characterization of pacific silver fir impregnated with extractives from western redcedar
title_full	Characterization of pacific silver fir impregnated with extractives from western redcedar
title_fullStr	Characterization of pacific silver fir impregnated with extractives from western redcedar
title_full_unstemmed	Characterization of pacific silver fir impregnated with extractives from western redcedar
title_sort	characterization of pacific silver fir impregnated with extractives from western redcedar
publisher	Universidad del Bío-Bío
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2019000300285
work_keys_str_mv	AT stirlingrod characterizationofpacificsilverfirimpregnatedwithextractivesfromwesternredcedar AT kusstacey characterizationofpacificsilverfirimpregnatedwithextractivesfromwesternredcedar
_version_	1714202675312066560

Characterization of pacific silver fir impregnated with extractives from western redcedar

Ejemplares similares